MAKE friend and alum Stefan Antonowicz suggested this classic toy, originally invented in 1974. He says the reason he found it great for his kids is “the colors, and the fact that it moves. It helped me to teach them the rules of a game (‘all the colors on one side have to match’) plus some interesting things about cubes (‘the middle cube can’t move. The cube consists of a number of smaller cubes – how many are there? How many are on each side?’) and math (‘what do you think 3 times 3 is? Do you know another way to say 3 times 3?’)”